As a result of diffusion the concentration of many types of substance eventually become balanced on both sides of the membrane.
b.)eventually becomes balanced on both side of a membrane.
<u>Explanation:</u>
Diffusion is the process by which substances move from a region of high concentration to low concentration. It is crucial in several biological processes and is a form of passive transport. Since the movement is down the concentration gradient, passive transport doesn’t require any energy.
When there exists a difference in concentration between the substances inside and outside a membrane the diffusion of substances through the membrane begins. The diffusion continues until the concentration of substances inside and outside of the membrane becomes balanced.
Answer:
In the population of the study, mutation in the achondroplasia gene is unusually high
Explanation:
In this population, the incidence of genetic mutation that leads to achondroplasia would be 6 children for every 30,000 births. In the general population, achodroplasia has an incidence of 1 per 30,000 births, which indicates that in this specific population, the mutation rate is high above average, which can be explained by a high prevalence of the gene in the population.
Achondroplasia is a genetic disease with inheritance of an autosomal dominant pattern and to suffer from the disease, only one copy of the defective gene is necessary.However, in recent years after several studies it has been possible to demonstrate that even achondroplasia could be generated even in new mutations in the germ cells of the parents.
Answer:
C. 0.120
Explanation:
Assortative mating by phenotype means that individuals with similar phenotypes mate with one another more frequently than would be expected under a random mating pattern. Assortative mating can increase genetic relatedness within a population.
The answer is C. 0.120 because in assortative mating, the allele frequency does not change as it is non-random mating and mates are chosen based on their phenotypes.
Out of the following given choices;
A. dendrite.
B. Neuron.
C. axon.
D. neuroglia.
The answer is; B
The basic structure of a neuron is given in the attached image. Input signal coming into a neuron do so through the dendrites that may receive many thousands of input signals. The summation of these signals determine whether there will be the transmission of an impulse on the neuron, that is when the threshold potential is reached. This impulse travels through the axon and into the axon terminals and into the synapse that transmits the impulse to the next neuron.
